JS to achieve the text large and small font size function (can be automatically recorded)

We must have seen the three buttons "big", "medium" and "small" under the title of the article in some large websites to take care of different people's reading habits. Here I would like to introduce this method, and more than their support automatically save Oh ~ Just select once, the next time to read automatically adjust to the favorite font size.

JS Code

First put the following JS into the JS file or script tag:

The code is as follows

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Jquery.cookie = function (name, value, options) { if (typeof value!= ' undefined ') { options = Options | | {}; if (value = = null) { Value = '; Options.expires =-1; } var expires = '; if (Options.expires && (typeof options.expires = ' number ' | | | options.expires.toUTCString)) { var date; if (typeof options.expires = = ' number ') { Date = new Date (); Date.settime (Date.gettime () + (Options.expires * 24 * 60 * 60 * 1000)); } else { date = Options.expires; } expires = '; Expires= ' + date.toutcstring (); } var path = Options.path? '; Path= ' + options.path: '; var domain = Options.domain? '; Domain= ' + options.domain: '; var secure = options.secure? '; Secure ': '; Document.cookie = [name, ' = ', encodeURIComponent (value), expires, path, domain, Secure].join ('); } else { var cookievalue = null; if (document.cookie && document.cookie!= ") { var cookies = Document.cookie.split (';'); for (var i = 0; i < cookies.length; i++) { var cookie = Jquery.trim (Cookies[i]); if (cookie.substring (0, name.length + 1) = = (name + ' = ')) { Cookievalue = decodeURIComponent (cookie.substring (name.length + 1)); Break } } } return cookievalue; } }; function SetFont (size) { $.cookie (' font_size ', size, {expires:99999999}); $ (". Context"). CSS ("font-size", size);//.context the container for your article }; $ (document). Ready (function () { SetFont ($.cookie (' font_size ') + ' px '); });

Pay attention to replacing the. Context of your code with the content container of your article.

Html Code

Then invoke the following code where needed:

The code is as follows	Copy Code
<a href= "Javascript:setfont" > Big </a> <a href= "Javascript:setfont" > </a> <a href= "Javascript:setfont" > Small </a>

You can customize the font size and text in the SetFont () function.